Forcelance experiences?
2014 rules :)
I'm considering playing a Hexblade with War Caster and PAM, to make use of the somewhat infamous "Forcelance" combo (Trigger OA when enemies approach to within 10ft, Eldritch Blast them with War Caster spell OA, while pushing them away with the Repelling Blast invocation).
I was considering starting with one level of Shadow sorcerer, because it feels thematic and because I plan to go variant human, so the 120ft darkvision is really nice (the build is invocation-heavy, so Devil's Sight is not easy to pick up). I also like the two 1st level slots, for casting the occasional Shield or Absorb Elements when your pact slots are of a higher level. War Caster + CON save prof also means you are very unlikely to lose concentration, right from level 1.
Would you bother with GWM? I was planning to just go War Caster at 1, PAM at warlock 4, and max out CHA from there. Eventually you get Life Drinker, and you could make use of upcast Spirit Shroud and the like, so the accuracy penalty doesn't seem super worth it; this way I am also not compromising my casting (and attacking) stat for too long. In my view, GWM could wait until warlock 16, if that ever happens.
My main question though is, have you played this type of character before, or seen it played? Was it fun? Did the DM get annoyed by constantly having their melee enemies pushed away?
Thanks in advance for your input!